John e



(No Model.)

J. E. BOEGEN; MEANS FOR OPERATING SEUTIO-NAL NUTSOP VISES. No. 521,698. Patented June 19 1894.

A x 5\ \6 1.? i ///l 3 qlfi 1/ 3 THE NATIONAL LITHOGHAFHING COMPANY. wnsmiwrron. n. c.

UNITED STATES JOHN E. BOEGEN, OF BAY CITY, MICHIGAN,

PATENT OFFICE.

ASSIGNOR TO THOMAS E.

WEBSTER, OF SAME PLACE.

MEANS FOR OPERATING SECTIONAL NU TS OF VISES.

SPECIFICATION forming part of Letters Patent No. 521,698, dated June 19, 1 894.

Application filed March 19, 1894- Serial No. 504.230. (No model.)

' provements in Means for Operating Sectional Nuts of Vises,'of which the following is a specification, reference being had therein to the accompanying drawings.

My invention relates to improvements in means for operating sectional nuts of vises, composed of two sections, capable of opening or moving away from each-other so as to disengage the screw therefrom to allow the screw to be quickly moved to and fro through the nut.

The objects of the invention are to provide a means for operating the sectional nut for I Vises, which will be easy of manipulation,

cheap and durable in construction, and efficient and rapid in its operation.

The invention consists in the combination, arrangement and construction of the various parts and elements, which will be hereinafter more fully described, and which will also be specifically pointed out inthe claim of this specification.

My invention is illustrated in the accom- 1 panying drawings, in which the same figures of reference will be found designating the same parts throughout the several views, and in which- Figure 1, is a vertical central section of a vise containing my improvement. Fig. 2, is a transverse section of Fig. 1, taken at a:o: and showing the parts in position when the sectional nut is closed. Fig. 3, is the same showing the sectional nut opened; Fig. 4, is a front side view of a sectional nut opened, showing the cams for operating the same. Fig. 5, is the same showing the sectional nut closed. Fig. 6, is a rearview of the same,

showing the nut-sections closed.

1, represents a work-bench upon which the vise is to be used, and-2, is a base plate secured to the surface of the bench, and pro- Vided with a central opening 3, which also extends through the bench.

4, is the rear stationary jaw which is provided in its middle portion with a transverse opening 5, preferably of a rectangular form,

and below this opening is provided a shoulder 6, which rests upon the base plate 2, while 7, is a cylindrical portion which extends through the opening 3. The portion 7, is provided with on its under side with a threaded recess 14,

which opposes the recess 11, so that the two form a threaded circularopening for the screw, and upon one side of the recess 14., the section is provided with a downwardly extending portion 15. I

Between the lower portions of the parts 12, and 15, is a space 16, and a shoulder 17, is arranged to project into the space from the part 12.

18, is a transverse opening in the lower portion of the part 12, beneath the shoulder 17, and 19, is a similar opening in the part 15, located on a plane above the opening 18, and 20, is a hollow arm running transversely through the space 16, and provided on its outer end with the cam 21, resting in the opening 18, and on its opposite end with a similar cam 22, resting inthe opening 19,.at a right angle with the cam 21, the cams 21, and 22, being formed so that their outer faces 33, will fill the space 34, of the. openings 18, and form a solid bearing for the portions 12, and 15, when the sectional nut is closed, by means of a weight 23, which is secured to the arm 20, and 24, is a lever secured to the said arm at a right angle with the weight 23, and to this lever'is attached a suitable rod or chain 25, provided on its opposite or lower end with a foot lever 26.

27, is a bolt passed through either side of the portion 7, andthrough the cam 21, the hollow arm 20, and the cam 22, holding the said arm, cams and weight in position, and upon which they are allowed to oscillate.

28, is a rectangular arm passed through the opening 5, in the stationary jaw, and is pro- Vided on its outer end with an upwardly extending movable jaw 29, and in the under IOC side of this arm is arranged an open chamber 30, into which the nut-sections extend, and 31, is a screw passed longitudinally through the arm and through the threaded opening formed by the threaded recess in the nut-sections, the threads of the recess engagingwithv the threads of the screw when "the nut sec-Y tions are closed together, and upon the outer end of the screw is arranged a handle 32, for revolving the screw in the ordinary mannen By means of the handle 32, the vise screw may be operated in the ordinary way, but as a quick means of actuating the movable :jaw, to or from the stationary jaw, the operator depresses the lever 26, by his foot, which os-* cillates the arm 20, and the cams 21, and22, and raising theweight 23,:and the'cam v22, moves thesection 13, andthe portion 14, upwardly,iand lowering the cam21,allows the section*10,and the threaded "portion 11, to

drop until bothsections are free from engagement with the screw, and the movable jaw together withthe arnrand screw, may then be moved 'toany desired position either out-I wardlyorinwardly, "and then on the foot leverbeing released, the parts return to their normal position by means "of the'weight 23, which firmly holds the nut-sections together by means of the cams, as before described.

Having described my invention, what I claimiasnew, and desire to secure by Letters Patent, is-

In ameans for operating the sectional nut of a vise, the combination of a vise having the nut-section 10, having the portion 12, and the nut-section 13, having the portion 15, extending into the opening 8, and the opening 18,in theportion l2, -and the opening 19, 1n the portion 15, the hollow arm 20, carrying the earns 21, and22,'operating in the openings 18, and 19, and the weight secured to the hollow arm,andlmeansforoscillating the said arm and eaxnsnas described, substantially as and "for the-purpose set'forth.

ln testimonywhereofllalfi x 1n ysi gnatnre 1n 1 presence of two'witnesses.

JOHN *BOEGEN. Witnesses:

G. P. THOMAS,

H. W. GARLAND. 

